When not touching mouse and keyboard audio stuttering appears. Stuttering appears when CPU load become slow down. In task manager i have seen normal cpu load approx 20-30 % and 3% when audio stuttering comes. When did not touch keyboard and mouse audio stuttering appears at 4 or 8 or 2 sec. and continues 4 - 5 sec. and this effect looping. Sound cards recognized by the system: 00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1) Sound cards recognized by ALSA: 00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1) Sound cards recognized by ALSA, and activated: 00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1) 00-00: ALC662 rev1 Analog : ALC662 rev1 Analog : playback 1 : capture 1 00-01: ALC662 rev1 Digital : ALC662 rev1 Digital : playback 1 00-02: ALC662 rev1 Alt Analog : ALC662 rev1 Alt Analog : capture 1 00-03: HDMI 0 : HDMI 0 : playback 1 alsactl version 1.0.29 or 1.0.28 - same effect. 3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux dmesg --level=err,warn: http://paste.debian.net/250409/ lspci http://paste.debian.net/250778/ lspci -v http://paste.debian.net/250779/
Sorry but I'm not sure I really understand this bugreport. In the subject of the report you mention Alsa and suspend, in the report itself you talk about the CPU load mostly. Could you try to clarify? From what I read here I don't think this is related to xfce4-power-manager.